Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung lai chet snippets" » "dung tai chet snippets", "dung lam chet snippets", "dung sai chet snippets", "dung cai chet snippets", "dung la chet snippets", "dung chai chet snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung lai chet snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung lai chet snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lai chet snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lai chet snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.